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Drooling, or slobbering, is the flow of saliva outside the mouth. Drooling can be caused by excess production of saliva, inability to retain saliva within the mouth, or problems with swallowing.

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Eagle syndrome is a rare condition commonly characterized but not limited to sudden, sharp nerve-like pain in the jaw bone and joint, back of the throat, and base of the tongue, triggered by swallowing, moving the jaw, or turning the neck. Since the brain to body's nerve connections pass through the neck, many seemingly random symptoms can be triggered by impingement or entanglement. First described by American otorhinolaryngologist Watt Weems Eagle in 1937, the condition is caused by an elongated or misshapen styloid process and/or calcification of the stylohyoid ligament, either of which interferes with the functioning of neighboring regions in the body, giving rise to pain.

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Gingival cyst, also known as Epstein's pearl, is a type of cysts of the jaws that originates from the dental lamina and is found in the mouth parts. It is a superficial cyst in the alveolar mucosa. It can be seen inside the mouth as small and whitish bulge. Depending on the ages in which they develop, the cysts are classified into gingival cyst of newborn and gingival cyst of adult. Structurally, the cyst is lined by thin epithelium and shows a lumen usually filled with desquamated keratin, occasionally containing inflammatory cells. The nodes are formed as a result of cystic degeneration of epithelial rests of the dental lamina.

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Ludwig's angina is a type of severe cellulitis involving the floor of the mouth. Early on the floor of the mouth is raised and there is difficulty swallowing saliva, which may run from the person's mouth. As the condition worsens, the airway may be compromised with hardening of the spaces on both sides of the tongue. This condition has a rapid onset over hours.

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An odontogenic infection is an infection that originates within a tooth or in the closely surrounding tissues. The term is derived from odonto- and -genic. The most common causes for odontogenic infection to be established are dental caries, deep fillings, failed root canal treatments, periodontal disease, and pericoronitis. Odontogenic infection starts as localised infection and may remain localised to the region where it started, or spread into adjacent or distant areas.

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Commonly known as a dental cyst, the periapical cyst is the most common odontogenic cyst. It may develop rapidly from a periapical granuloma, as a consequence of untreated chronic periapical periodontitis.

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A traumatic neuroma is a type of neuroma which results from trauma to a nerve, usually during a surgical procedure. The most common oral locations are on the tongue and near the mental foramen of the mouth. They are relatively rare on the head and neck.